提出了用两种类随机性良好的混沌系统进行组合叠加产生混沌密钥信号的加密方案。该方案利用了混沌序列初值、系统参数和叠加

系数的秘密性算法高效快速、时空开销小。通过仿真实验分析，该系统能有效抵抗系统识别攻击，且密文加密效果好非常适合于资源开销,有限和实时性要求较高的安全通信场合。-Proposed two types of randomness of the chaotic system a good combination of superimposed signals generated chaotic key encryption scheme. The program draws on the initial value of the chaotic sequence, the system parameters and the superposition coefficients of secret algorithms efficient fast, time and space overhead small. Through simulation analysis, the system can effectively resist the system to identify attacks, and the encrypted ciphertext is very suitable for effective resource overhead, limited and real-time secure communications for better occasions.